<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        function* gen() {
            // console.log(111);
            yield '一只没有耳朵'; //yield相当于函数代码的分隔符
            // console.log(222);
            yield '一只没有尾巴';
            // console.log(333);
            yield '真奇怪';
            // console.log(444);
        }
        let iterator = gen();
        console.log(iterator.next());
        console.log(iterator.next());
        console.log(iterator.next());
        console.log(iterator.next());
        // 遍历函数
        // for (let v of gen()) {
        //     console.log(v);
        // }
    </script>
</body>

</html>